3. What is the percentage, by mass, of water in sodium carbonate
crystals,
Na, CO3. 10 H2O

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

1) this is the structure in the cell nucleus that houses a cell's genetic information